CVE-2023-5753
Potential buffer overflow vulnerabilities in the Zephyr Bluetooth subsystem
Potential buffer overflows in the Bluetooth subsystem due to asserts being disabled in /subsys/bluetooth/host/hci_core.c
Attack profile
How easy it is to exploit
- Attack vector
- Adjacent network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
Potential buffer overflow vulnerabilities in the Zephyr Bluetooth subsystem
Potential buffer overflows in the Bluetooth subsystem due to asserts being disabled in /subsys/bluetooth/host/hci_core.c
- Record
CVE-2023-5753- CVSS 3.1
- 6.3 Medium
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L - Weakness
- CWE-120, CWE-191
- Updated
- 2026-11-02
EUVDEUVD-2023-58038
Potential buffer overflows in the Bluetooth subsystem due to asserts being disabled in /subsys/bluetooth/host/hci_core.c
- Record
EUVD-2023-58038- CVSS 3.1
- 6.3 Medium
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L - Updated
- 2026-11-03
NVD
Potential buffer overflows in the Bluetooth subsystem due to asserts being disabled in /subsys/bluetooth/host/hci_core.c
- Record
CVE-2023-5753- CVSS 3.1
- 6.3 Medium
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L - CVSS 3.1
- 8.8 High
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-120, CWE-191
- Updated
- 2026-11-02
OSV
Potential buffer overflow vulnerabilities in the Zephyr Bluetooth subsystem
Potential buffer overflows in the Bluetooth subsystem due to asserts being disabled in /subsys/bluetooth/host/hci_core.c
- Record
CVE-2023-5753- CVSS 3.1
- 6.3 Medium
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L - Weakness
- CWE-120, CWE-191
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-5753 is a medium vulnerability (CVSS 6.3) in Zephyrproject Zephyr, published October 24, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.02%, the 63rd percentile. No source names a fixed version.
References
github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-hmpr-px56-rvww
openwall.com/lists/oss-security/2023/11/07/1
seclists.org/fulldisclosure/2023/Nov/1
packetstormsecurity.com/files/175657/Zephyr-RTOS-3.x.0-Buffer-Overflows.html
nvd.nist.gov/vuln/detail/CVE-2023-5753